1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _RTL871X_RECV_H_ 3 #define _RTL871X_RECV_H_ 4 5 #include "osdep_service.h" 6 #include "drv_types.h" 7 8 #define NR_RECVFRAME 256 9 10 #define RXFRAME_ALIGN 8 11 #define RXFRAME_ALIGN_SZ (1 << RXFRAME_ALIGN) 12 13 #define MAX_SUBFRAME_COUNT 64 14 15 /* for Rx reordering buffer control */ 16 struct recv_reorder_ctrl { 17 struct _adapter *padapter; 18 u16 indicate_seq; /* =wstart_b, init_value=0xffff */ 19 u16 wend_b; 20 u8 wsize_b; 21 struct __queue pending_recvframe_queue; 22 struct timer_list reordering_ctrl_timer; 23 }; 24 25 struct stainfo_rxcache { 26 u16 tid_rxseq[16]; 27 }; 28 29 #define PHY_RSSI_SLID_WIN_MAX 100 30 #define PHY_LINKQUALITY_SLID_WIN_MAX 20 31 32 33 struct smooth_rssi_data { 34 u32 elements[100]; /* array to store values */ 35 u32 index; /* index to current array to store */ 36 u32 total_num; /* num of valid elements */ 37 u32 total_val; /* sum of valid elements */ 38 }; 39 40 struct rx_pkt_attrib { 41 42 u8 amsdu; 43 u8 order; 44 u8 qos; 45 u8 to_fr_ds; 46 u8 frag_num; 47 u16 seq_num; 48 u8 pw_save; 49 u8 mfrag; 50 u8 mdata; 51 u8 privacy; /* in frame_ctrl field */ 52 u8 bdecrypted; 53 int hdrlen; /* the WLAN Header Len */ 54 int encrypt; /* 0 no encrypt. != 0 encrypt algorithm */ 55 int iv_len; 56 int icv_len; 57 int priority; 58 int ack_policy; 59 u8 crc_err; 60 u8 dst[ETH_ALEN]; 61 u8 src[ETH_ALEN]; 62 u8 ta[ETH_ALEN]; 63 u8 ra[ETH_ALEN]; 64 u8 bssid[ETH_ALEN]; 65 u8 tcpchk_valid; /* 0: invalid, 1: valid */ 66 u8 ip_chkrpt; /* 0: incorrect, 1: correct */ 67 u8 tcp_chkrpt; /* 0: incorrect, 1: correct */ 68 u8 signal_qual; 69 s8 rx_mimo_signal_qual[2]; 70 u8 mcs_rate; 71 u8 htc; 72 u8 signal_strength; 73 }; 74 75 /* 76 * accesser of recv_priv: recv_entry(dispatch / passive level); 77 * recv_thread(passive) ; returnpkt(dispatch) 78 * ; halt(passive) ; 79 * 80 * using enter_critical section to protect 81 */ 82 struct recv_priv { 83 spinlock_t lock; 84 struct __queue free_recv_queue; 85 struct __queue recv_pending_queue; 86 u8 *pallocated_frame_buf; 87 u8 *precv_frame_buf; 88 uint free_recvframe_cnt; 89 struct _adapter *adapter; 90 uint rx_bytes; 91 uint rx_pkts; 92 uint rx_drop; 93 uint rx_icv_err; 94 uint rx_largepacket_crcerr; 95 uint rx_smallpacket_crcerr; 96 uint rx_middlepacket_crcerr; 97 u8 rx_pending_cnt; 98 uint ff_hwaddr; 99 struct tasklet_struct recv_tasklet; 100 struct sk_buff_head free_recv_skb_queue; 101 struct sk_buff_head rx_skb_queue; 102 u8 *pallocated_recv_buf; 103 u8 *precv_buf; /* 4 alignment */ 104 struct __queue free_recv_buf_queue; 105 u32 free_recv_buf_queue_cnt; 106 /* For the phy information */ 107 s8 rssi; 108 u8 signal; 109 u8 noise; 110 u8 fw_rssi; 111 struct smooth_rssi_data signal_qual_data; 112 struct smooth_rssi_data signal_strength_data; 113 }; 114 115 struct sta_recv_priv { 116 spinlock_t lock; 117 sint option; 118 struct __queue defrag_q; /* keeping the fragment frame until defrag */ 119 struct stainfo_rxcache rxcache; 120 uint sta_rx_bytes; 121 uint sta_rx_pkts; 122 uint sta_rx_fail; 123 }; 124 125 #include "rtl8712_recv.h" 126 127 /* get a free recv_frame from pfree_recv_queue */ 128 union recv_frame *r8712_alloc_recvframe(struct __queue *pfree_recv_queue); 129 void r8712_free_recvframe(union recv_frame *precvframe, 130 struct __queue *pfree_recv_queue); 131 void r8712_free_recvframe_queue(struct __queue *pframequeue, 132 struct __queue *pfree_recv_queue); 133 int r8712_wlanhdr_to_ethhdr(union recv_frame *precvframe); 134 int recv_func(struct _adapter *padapter, void *pcontext); 135 136 static inline u8 *get_rxmem(union recv_frame *precvframe) 137 { 138 /* always return rx_head... */ 139 if (precvframe == NULL) 140 return NULL; 141 return precvframe->u.hdr.rx_head; 142 } 143 144 static inline u8 *get_recvframe_data(union recv_frame *precvframe) 145 { 146 /* always return rx_data */ 147 if (precvframe == NULL) 148 return NULL; 149 return precvframe->u.hdr.rx_data; 150 } 151 152 static inline u8 *recvframe_pull(union recv_frame *precvframe, sint sz) 153 { 154 /* used for extract sz bytes from rx_data, update rx_data and return 155 * the updated rx_data to the caller 156 */ 157 if (precvframe == NULL) 158 return NULL; 159 precvframe->u.hdr.rx_data += sz; 160 if (precvframe->u.hdr.rx_data > precvframe->u.hdr.rx_tail) { 161 precvframe->u.hdr.rx_data -= sz; 162 return NULL; 163 } 164 precvframe->u.hdr.len -= sz; 165 return precvframe->u.hdr.rx_data; 166 } 167 168 static inline u8 *recvframe_put(union recv_frame *precvframe, sint sz) 169 { 170 /* used for append sz bytes from ptr to rx_tail, update rx_tail and 171 * return the updated rx_tail to the caller 172 * after putting, rx_tail must be still larger than rx_end. 173 */ 174 if (precvframe == NULL) 175 return NULL; 176 precvframe->u.hdr.rx_tail += sz; 177 if (precvframe->u.hdr.rx_tail > precvframe->u.hdr.rx_end) { 178 precvframe->u.hdr.rx_tail -= sz; 179 return NULL; 180 } 181 precvframe->u.hdr.len += sz; 182 return precvframe->u.hdr.rx_tail; 183 } 184 185 static inline u8 *recvframe_pull_tail(union recv_frame *precvframe, sint sz) 186 { 187 /* rmv data from rx_tail (by yitsen) 188 * used for extract sz bytes from rx_end, update rx_end and return the 189 * updated rx_end to the caller 190 * after pulling, rx_end must be still larger than rx_data. 191 */ 192 if (precvframe == NULL) 193 return NULL; 194 precvframe->u.hdr.rx_tail -= sz; 195 if (precvframe->u.hdr.rx_tail < precvframe->u.hdr.rx_data) { 196 precvframe->u.hdr.rx_tail += sz; 197 return NULL; 198 } 199 precvframe->u.hdr.len -= sz; 200 return precvframe->u.hdr.rx_tail; 201 } 202 203 struct sta_info; 204 205 void _r8712_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv); 206 sint r8712_recvframe_chkmic(struct _adapter *adapter, 207 union recv_frame *precvframe); 208 union recv_frame *r8712_decryptor(struct _adapter *adapter, 209 union recv_frame *precv_frame); 210 union recv_frame *r8712_recvframe_chk_defrag(struct _adapter *adapter, 211 union recv_frame *precv_frame); 212 int r8712_validate_recv_frame(struct _adapter *adapter, 213 union recv_frame *precv_frame); 214 union recv_frame *r8712_portctrl(struct _adapter *adapter, 215 union recv_frame *precv_frame); 216 217 #endif 218 219